Question

Ćwiczenie 2 str 67 matematyka. ​

Answer 1

a)

3+4*5=3+20=23

(-2)+5*(-3)=(-2)+(-15)=(-2)-15=-17

-⁷/₈+¹/₂*³/₄=-⁷/₈+³/₈=¹⁰/₈=1²/₈=1¹/₄

b)

(3+4)*5=7*5=35

((-2)+5)*(-3)=3*(-3)=-9

(-⁷/₈+⁴/₈)*³/₄=(-³/₈)*³/₄=-⁹/₃₂

c)

2*3²=2*9=18

(-4)*(-2)²=(-4)*4=-16

0,2*0,3²=0,2*0,09=0,018

d)

(2*3)²=6²=36

((-4)*(-2))²=8²=64

(0,2*0,3)²=0,06²=0,0036